National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

48°F

9°C

Humidity 56%
Wind Speed E 13 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 20 Mar 12:54 pm EDT
Extended Forecast for

Watertown MA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 55. South wind 9 to 11 mph, with gusts as high as 24 mph.

    High: 55 °F

    Partly Sunny

  • Tonight

    Tonight: Rain, mainly before 1am. Patchy fog after 3am. Low around 43. Southwest wind 6 to 10 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 37. Northwest wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain and snow before 9am, then rain. High near 52. South wind 6 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 52 °F

    Rain/Snow
    Likely then
    Rain

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 35. North wind around 7 mph. Chance of precipitation is 70%.

    Low: 35 °F

    Rain Likely

  • Monday

    Monday: A chance of rain before 5pm. Cloudy, with a high near 43. North wind 8 to 10 mph. Chance of precipitation is 50%.

    High: 43 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Northwest wind around 7 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Northwest wind around 7 mph.

    High: 45 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 55. South wind 9 to 11 mph, with gusts as high as 24 mph.
Tonight
Rain, mainly before 1am. Patchy fog after 3am. Low around 43. Southwest wind 6 to 10 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 53. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Increasing clouds, with a low around 37. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of rain and snow before 9am, then rain. High near 52. South wind 6 to 10 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday Night
Rain likely. Cloudy, with a low around 35. North wind around 7 mph. Chance of precipitation is 70%.
Monday
A chance of rain before 5pm. Cloudy, with a high near 43. North wind 8 to 10 mph. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 29. Northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 45. Northwest wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 32. Southwest wind around 7 mph.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 48. West wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 30. Northwest wind around 8 mph.
Thursday
Mostly sunny, with a high near 49. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
1:08 pm EDT Mar 20, 2026
Forecast Valid:
1pm EDT Mar 20, 2026-6pm EDT Mar 26, 2026
 
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Additional Resources

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Chance of Precipitation